Hydraulic machine for making casing.



J. R. FRENCH. HYDBAULIG MAGHINE FOR. MAKING CASING. APPLICATION FILED3330.17, 1908.

937,990. I Patented 0011.26, 1909.,

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J. R. FRENCH. HYDRAULIC MACHINE FOR MAKING CASING.

APPLIOATIOI FILED 1230.17, 1908. 937,990. Patented 0ct.26, 1909. 2SHEETS-SHEET Z.

Ailcniw. a. GRAHAM 0 PHUYOLITMOGRAPHERS. Wmmrmmn. u. c.

UNITED STATES PATENT OFFICE.

JOHN R. FRENCH, DE LOS ANGELES, CALIFORNIA, ASSIGNOR 'IO LACYMANUFACTURING COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION.

HYDRAULIC MACHINE FOR MAKING CASING.

Application filed December 17, 1908.

To all whom it may concern:

Be it known that I, JOHN R. FRENCH, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Hydraulic Machine for MakingCasing, of which the following is a specification.

The casing which is constructed with this machine consists of an outerseries of pipe sections arranged with their ends close together and aseries of pipe sections closely fitting within the outer sections andthe ends of the inner sections being substantially midway of oralternating with the ends of the outer sections, so that the joints arestaggered and the pipe is of great strength. In the construct-ion ofsuch casing heretofore the outer section has been driven over the innersection by manually driving it on, one method having been to suspend thecompleted portion of the casing in a sling, and

the inner section having been started it was driven home by manuallyramming the tube against a rigid support. This process required theservices of two men, was extremely fatiguing work, requiring greatmuscular energy, and the ends of the sections became battered in rammingthem against a rigid support.

It is the object of the present invention to enable the sections to bequickly forced together by hydraulic or other fluid pressure withoutbattering the ends and with but the labor of a single man and not onlyeliminate the expenditure of great muscular energy but also accomplishthe results more quickly and better, thereby attaining considerableeconomy in the manufacture of the casing and producing a better product.

The accompanying drawings illustrate two forms of the invention, andreferring thereto: Figure 1 is a side elevation showing one form of theinvention. Fig. 2 is a horizontal sectional view on line c w in Fig. 1.Fig. 3' is a side elevation showing another form. Fig. 4 is a verticalsection on line 00 -0c Fig. 3.

In the form shown in Fig. 1, 1 designates the main frame of the machinewhich is provided with a riveting head 2 operated in any well knownmanner for riveting the sections when completed. 3 is a stake projectinghorizontally from the frame 1 and supporting the sections while beingriveted and also supporting one end of the tube while Specification ofLetters Patent.

Patented Oct. 26, 1909.

Serial No. 468,081.

the sections are being driven on. A cylinder 4 projects rearwardly fromthe frame 1 and is provided with a piston 5 having a piston rod 6 whichcarries a yoke 7, the latter having two connecting rods 8 which extendforward, as shown, and each connecting rod 8 having a series of holes 9adapted to be engaged by pins 10 with a driving head 11, the latterbeing supported by links 12 and 13, the former being pivotally securedto the upper portion of the head 11, and the latter being secured atabout the center of the head 11. The link 12 extends vertically and issuspended from a carrier 14, while the link 13 extends rearwardly at anangle and is also connected to the carrier, so that the driving head 11is not only supported but is held against tilting. The driving head 11has a curved shelf 15 which forms a support for the end of the casing.

The carrier 14 is mounted on wheels 16 which travel on a stationarytrack 17. Connected to the carrier 14 is a horizontal cable 18 which iscarried on pulleys 19 and 20, and a hand wheel 21 is provided forrotating the pulley 20, whereby the cable or chain 18 may be operated toadvance or retract the carrier 14 and driving head 11. Also an auxiliarycarrier 22 is mounted to travel on the track 17 and supported by carrier22 is a cable or chain 23 which is passed around the casing and acts asa sling to support the casing in a horizontal position.

24 designates the outer sections of casing and 25 designates the innersections of casing. In Fig. 1 I have shown two outer sections of casingput together with the third outer section just slight-1y started. Byoperating the lever 26 which acts through link 27 to operate the valve28, fluid is admitted against the piston 5 and the latter is propelledrearwardly, thus drawing connecting rods 8 with it together with thedriving head 11, and the latter forces the inner section 25 into theleft hand, outer section 24. As soon as this has been accomplished thevalve 28 may be reversed to restore the piston 5 and driving head 11,but the next section to be added will necessitate the driving head 11being retracted sufiiciently to admit the section, and this isaccomplished by removing pins 10 which allow the driving head 11 to becarried back a distance sufficient to en able a new inner section to beplaced on the stake 3, after which the left hand outer section isstarted over the inner section by mait has been started the valve 28 maythen be operated as before to drive the parts together by power. V

In Figs. 3 and 4 I have shown a modification in which the cylinder andpiston are moved or adjusted bodily as required to accommodate theincreasing length of pipe as it is built up. In this form 30 designatesan abutment having a curved shelf 31 for supporting the adjacent end ofthe casing. 32 designates two ways which connect the abutment 30rwith ahead 33. Slidable on the ways 32 are brackets 34 which project from thecylinder 35; 36 is a screw which has a swivel connection at 37 with thecylinder 35, and 38 is a hand wheel for turning the screw 36. The screw36 extends through a nut 39 inthe head 33, so that by turning screw 36the cylinder 35 together with its plunger 40 may be adjusted bodilyalong the ways 32 and thus place it in proper position for the plunger40 to operate against the end of the section. In this form the casingmay be supported by a timber 4L1 placed across the bed plates 42. v 1

' Nhat I claim is:

r 1. A cylinder and piston, a pair of links connected with the piston, ahead adjnstably connected with said links, a carrier supporting saidhead, and a track for said carrier.

2. A cylinder and piston, a pair of links connected with the piston, ahead adjustably connected with said links, a carriersupporting saidhead, a track for said carrier, and

ing the driving head, a track on which said carrier is adapted totravel, a pulley at each end of said track, a cable over said pulleysconnected to the carrier, and a hand wheel for operating one of saidpulleys.

4. A cylinder and piston, links connected with the piston, a drivinghead, pins in said driving head detachably engaging in holes formed insaid links, a carrier wfor supportmg sa1d drivlng head, and manuallyoper- V ated means for shifting said carrier.

5. A cylinder and piston, a pair of links connected with the piston,a'driving head adj ustably connected with said links, a curved shelf onthe driving head for supporting one end of the casing, a pair of linksconnected to the driving head, a carrier supporting said links, a trackon which said carrier travels, means for shifting said carrier alongsaid track,an auxiliary carrier on said track,

and a sling supported by the auxiliary carrier for partially holding thecasing.

In testimony whereof, my hand at Los Angeles, California, this 7th dayof December 1908.

I In presence of V G. T. I-IAoKLEY, FRANK L. A. GRAHAM.

JOHN R; FRENCH.

I have hereunto set V

